如何使用mongoose从集合的所有文档中删除指定的字段？

Question

我想使用mongoose从用户集合中删除所有文档中的密钥“passwrod”，是否可以使用$ unset进行删除？

 { "_id" : ObjectId("58ec890c91b2b612084fd827"),
        "username" : "zain",
        "passwrod" : 123,
        "password" : 8 },
{   "_id" : ObjectId("58ec8918364116187845948d"),
        "username" : "bob",
        "password" : 123,
        "passwrod" : 12  }

Answer 1

文件：

{ "_id" : ObjectId("58ec890c91b2b612084fd827"), "username" : "zain", "passwrod" : 123, "password" : 8 }
{ "_id" : ObjectId("58ec8918364116187845948d"), "username" : "bob", "password" : 123, "passwrod" : 12 }

查询：

db.collection.updateMany({}, {$unset:{"passwrod":1}})

结果：

{ "_id" : ObjectId("58ec890c91b2b612084fd827"), "username" : "zain", "password" : 8 }
{ "_id" : ObjectId("58ec8918364116187845948d"), "username" : "bob", "password" : 123 }